how do you hook up a aftermarket sterio in a 2007 gmc sierra new body style? and how can you get the onstar to work also?//content.invisioncic.com/y282845/emoticons/veryhappy.gif.fec4fed33b4a1279cf10bdd45a039dae.gif
If you need to ask this simple question , it's best you let someone who know's what they are doing wire it up. You can watch and learn that way, alot easier and you avoids tons of mistakes that a 'newb' would make. Good luck!